Problem: I fix things, then forget about them and break them again
Problem: I fix things, then forget about them and break them again

Solution: add comment explaining why systemd build-dependency is
needed (to programmatically get the unit install path via the
pkg-config file)

taotetek/zproject,paddor/zproject,taotetek/zproject,zeromq/zproject,zeromq/zproject,paddor/zproject,taotetek/zproject,paddor/zproject,zeromq/zproject